Which sentence uses an adverbial clause to add variety and interest to its meaning?

a) no one knew what the theme of the dancing contest for next year would be.
b) the emcee, along with the school principal, announced the theme for next year's dancing contest.
c) after all the confetti had fallen, the emcee announced the theme for next year's dancing contest.
eliminate
d) the contestants in the dancing contest listened to the announcement of next year's theme.

This thinning would materially change the sound of the drum, evidence that although it might continue to be used for its original purpose of music-making or calling people to arms, it would now do so with a different voice. a musical instrument had become a trophy, and the new carvings were in fact branding, a statement of the north’s political dominance over central africa and of allegiance to islam.the drum had come to khartoum at a critical moment in sudanese history. in an audio version, stressing the word "branding" would do what for the listener? emphasize the word's importance and the idea that followsadd emphasis to the following sentencesignal that something important has just been repeatedadd emphasis to the preceding sentence